| Price from | — | — |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| iOS | — | Yes |
| Plans published | 1 | 1 |
| Spec score · DJ Software | 7.9 (#12) | 7.1 (#24) |
| Purpose | DEX 4 mixes music and music videos and hosts karaoke in one DJ software product. | Tau is DJ software created as an alternative to Serato, Rekordbox, Virtual DJ, and Djay. |
| Support | PCDJ provides a DEX 4 support page and lists sales office hours as Tuesday through Friday, 9 a.m. to 5 p.m. | Support is provided through the Tau Discord community. |
| System requirements | The page lists Windows 8.1, 10, or 11 and macOS 10.15 or higher, with at least 8 GB RAM recommended for both. | The site lists minimum requirements of macOS 15.6, iOS 17.4, or Windows 10 (19041). |
